Rent-seeking
en.wikipedia.org
en.wikipedia.org
> Rent-seeking generally implies the extraction of uncompensated value from others without making any contribution to productivity, such as by gaining control of land and other pre-existing natural resources, or by imposing burdensome regulations or other government decisions that may affect consumers or businesses.
Apple isn't trying to extract value from a pre-existing resource or through government coercion. They're trying to extract value from something they built.
I agree that they're being really pushy about it, but they are bringing something to the table.
once i've downloaded an app from the appstore the relationship is between the developer and i. both parties have already paid their entrance fee to apples venue.
artificially requiring that apps make apples subscription api available is just an underhanded way of creating the illusion that apple is still being productive.
rent-seek is a perfectly valid characterization of what apple is doing. i don't care if it passes whatever filters our legal system stipulates. the definition of rent-seeking does not imply that the activity is illegal.